<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
		<button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
		<view class="tips-text">登录后尽享更多权益</view>
	</view>
</template>

<script>
	import {
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-login",
		computed: {
			...mapState('m_user', ['redirectInfo'])
		},
		data() {
			return {

			};
		},
		methods: {
			...mapMutations('m_user', ['updateUserinfo', 'updateToken', 'updateRedirectInfo']),
			// 获取用户基本信息
			getUserInfo(e) {
				if (e.detail.errMsg === 'getUserInfo:fail auth deny') {
					return uni.$showMsg('您取消了登录授权！')
				}
				this.updateUserinfo(e.detail.userInfo)
				this.getToken(e.detail)
			},
			async getToken(info) {
				// 调用微信登录接口
				const [err, res] = await uni.login().catch(err => err)
				// 判断是否 uni.login() 调用失败
				if (err || res.errMsg !== 'login:ok') return uni.$showError('登录失败！')

				// 准备参数对象
				const query = {
					code: res.code,
					encryptedData: info.encryptedData,
					iv: info.iv,
					rawData: info.rawData,
					signature: info.signature
				}

				// 换取 token
				const {
					data: loginResult
				} = await uni.$http.post('/api/public/v1/users/wxlogin', query)
				// if (loginResult.meta.status !== 200) return uni.$showMsg('登录失败！')
				this.updateToken('Bearer xxxxxx')
				uni.$showMsg('登录成功')
				this.navigateBack()
			},
			navigateBack() {
				if (this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
					uni.switchTab({
						url: this.redirectInfo.from,
						complete: () => {
							this.updateRedirectInfo(null)
						}
					})
				}
			}
		}
	}
</script>

<style lang="scss">
	.login-container {
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		height: 750rpx;
		background-color: #f8f8f8;

		.btn-login {
			margin: 15px 0;
			width: 90%;
			border-radius: 100px;
			background-color: #c00000;
			font-size: 16px;
		}

		.tips-text {
			font-size: 14px;
			color: gray;
		}
	}
</style>
